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Investigation of size effects in the electrical resistivity of single electrochemically fabricated gold nanowires

Karim, Shafqat ; Ensinger, Wolfgang ; Cornelius, T. W. ; Neumann, R. :
Investigation of size effects in the electrical resistivity of single electrochemically fabricated gold nanowires.
[Online-Edition: http://www.sciencedirect.com/science/article/B6VMT-4SMWFM1-1...]
In: Physica E: Low-dimensional Systems and Nanostructures, 40 (10) 3173 - 3178.
[Artikel], (2008)

Offizielle URL: http://www.sciencedirect.com/science/article/B6VMT-4SMWFM1-1...

Kurzbeschreibung (Abstract)

Single gold nanowires with diameters ranging between 80 and 300 nm were fabricated by electrochemical deposition in single-pore membranes. The wires were contacted by means of a macroscopic planar electrode on each membrane side. The resistance-versus-diameter behavior was measured and is discussed considering finite-size effects, i.e., additional electron scattering both at the wire surface and at grain boundaries. Resistance-versus-temperature curves display characteristics like a bulk metal that shows a linear behavior down to about 70 K and finally approaches a limited value below 40–50 K with a residual resistivity ratio ρ300 K/ρ20 K≈2.5. The temperature-dependent resistivity data of wires with diameters larger than 200 nm fit well with the model of Mayadas and Shatzkes for grain-boundary scattering, thus confirming that surface scattering is negligible in this range.

Typ des Eintrags: Artikel
Erschienen: 2008
Autor(en): Karim, Shafqat ; Ensinger, Wolfgang ; Cornelius, T. W. ; Neumann, R.
Titel: Investigation of size effects in the electrical resistivity of single electrochemically fabricated gold nanowires
Sprache: Englisch
Kurzbeschreibung (Abstract):

Single gold nanowires with diameters ranging between 80 and 300 nm were fabricated by electrochemical deposition in single-pore membranes. The wires were contacted by means of a macroscopic planar electrode on each membrane side. The resistance-versus-diameter behavior was measured and is discussed considering finite-size effects, i.e., additional electron scattering both at the wire surface and at grain boundaries. Resistance-versus-temperature curves display characteristics like a bulk metal that shows a linear behavior down to about 70 K and finally approaches a limited value below 40–50 K with a residual resistivity ratio ρ300 K/ρ20 K≈2.5. The temperature-dependent resistivity data of wires with diameters larger than 200 nm fit well with the model of Mayadas and Shatzkes for grain-boundary scattering, thus confirming that surface scattering is negligible in this range.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Physica E: Low-dimensional Systems and Nanostructures
Band: 40
(Heft-)Nummer: 10
Verlag: Elsevier Science Publishing Company
Freie Schlagworte: Size effects; Electrical resistivity; Gold nanowires
Fachbereich(e)/-gebiet(e): Fachbereich Material- und Geowissenschaften > Materialwissenschaften > Materialanalytik
Fachbereich Material- und Geowissenschaften > Materialwissenschaften
Fachbereich Material- und Geowissenschaften
Hinterlegungsdatum: 06 Jul 2009 13:54
Offizielle URL: http://www.sciencedirect.com/science/article/B6VMT-4SMWFM1-1...
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